DP Pumps Hydro-Unit Premium, Инструкция по установке и эксплуатации

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individual pumps operate only in line with actual demand.
If the demand drops towards 0, the pressure booster system slowly runs down to the stop
point.
Hydro-Unit Premium Line SVP:
1 volt-free general contact is provided in the control cabinet for reporting warnings and
alerts, respectively.
If a pump has not been in operation for 24 hours, a test run is initiated for this pump.
4.7 Noise characteristics
The pressure booster system is available with different numbers and sizes of pumps. For the
noise characteristics refer to the operating manual of the pump set. To calculate the
expected total sound pressure level, add a defined value to the individual pump set’s
expected sound pressure level.
Table 9: Values for calculating the total expected sound pressure level
Number of pump sets Value
dB(A)
2 + 3
3 + 4,5
4 + 6
5 + 7
6 + 7,5
Example
Pressure booster system with 4 pump sets (value: + 6 dB(A))
Single pump = 48 dB(A)
48 dB(A) + 6 dB(A) = 54 dB(A)
The expected total sound pressure level of 54 dB(A) may develop when all 4 pump sets are
running under full-load conditions.
4.8 Scope of supply
Depending on the model, the following items are included in the scope of supply:
– 2 or 3 vertical high-pressure centrifugal pumps with oval flange
– Powder-coated / epoxy resin-coated steel baseplate
– Check valve per pump
– Discharge-side gate valve per pump
– Suction-side gate valve per pump
– Suction-side manifold and discharge-side manifold made of stainless steel
– Pressure transmitter on the discharge side
– Pressure gauge
– Pressure transmitter on the inlet side for dry running protection
– Discharge-side, direct-flow membrane-type accumulator, approved for drinking water
– Control unit (IP54 enclosure)
– Sheet steel housing: colour RAL 7035
– Parameterisable DP Control control unit
– Control panel (display, keys, LEDs, service interface)
– Three LEDs signalling the operating status
– Lockable master switch (repair switch)
– Motor protection switch per pump